Sony BVM-2011P - 18-2-9. BT Board Y;C DELAY Adjustment

18
_
2
_
9
_ BT Board Y/C DELAY Adjustment
I.
2.
3.
4.
5.
Modulated 12.5T pulse signal
SIGNAL GENERA TOR
• Tektronix 1410/1411
0
Feed a 12.ST pulse signal to the VIDEO A tem1inal of this
set. h ON
Set the PAL S/SECAM F/COMB S button tot e .
Connect the oscilloscope to TPI0I on the BH board.
Tum the CHROMA MANUAL control (on _the _front panel)
until the chroma signal is adjusted as shown m Fig. 18-10.
After adjustment, tum RY4 (Y_/C DELAY) on the BT board
until the wavefom1 is symmetrical.
VIDEO A
Fig. 18-10
4-61
'----------,,; ® D ®
BT board TP101 @)
@)
Oscilloscope
Left and right symmetrical
©
AUTO
SET UP
PROBE
0
DEGAUSS
FRONT PANEL
POWER
CHROMA
B
RIGHTNESS CONTRAST ""'ER 1 INPUT2
SCAN MODE SCREEN APER· BLUE MONO PHASE uv
~ ~ TUREONLY~DE O O O O L~AD[Q][Q]
[Q][Q][Q][Q][g][g][g][Q][Q] ~ ~ ij ij ij MA~UAL ~ ~
0L.._-~-~I)
BH board
BT board
0
0
RV4
~~
0
0~
~
0
~
~
0
0
TP101 RED
0
8
~o
O oo
0
SUB CONTROL PANEL (HY board)
0
0
0
0
0
0
Oil 0
OGAIN
0
1QWH1TE
BLUE
GREEN
RED
OD
0
QrnAS
0
2Q GRAY
RGB YIN CODED
0 0
0 3OFORMAT
TEST B
A
0 0
0 0
401NPUT
EXT
INT
0
0 0
sOsvNc
SECAM PAL NTSC
0
0 0
0 sOsvsTEM
CHROMA
/PHASE
COMB TRAP
•
0~~€A~ F
0 0
0 1Ovc SEP
COMB S
WHITE
MEM3 MEM2 MEM1 D65/093
BAL
R3 R2 Rl RO
0
o~~~
0 0 0 0
0 °OV:)1:C
16: 9
4; 3
sQASPECT
0
osPUT
CONFIGURATION
0 0
SCREEN
8
SEL
REMOTE
oQ~f~IE
0
0
RESET
ENT
ESC
0 0 0
OMENU
AUTO SETUP
0 0
4-62